Vibration device



FIG. 1 is a perspective view of a vibration device according to theinvention;

FIG. 2 is a front elevation view of the vibration device of FIG. 1;

FIG. 3 is a rear elevation view of the vibration device of FIG. 1;

FIG. 4 is a left side elevation view of the vibration device of FIG. 1;

FIG. 5 is a right side elevation view of the vibration device of FIG. 1;

FIG. 6 is a top plan view of the vibration device of FIG. 1; and,

FIG. 7 is a bottom plan view of the vibration device of FIG. 1.

The broken line disclosure, as well as line shading in parts of thedrawings are included for the purpose of illustrating use andenvironment and form no part of the claimed design.

CLAIM The ornamental design for a vibration device, as shown anddescribed.